Modeldex
Google

Gemini 3.1 Flash TTS Preview

CTX8K
Preview
Text to speech
TextInput$1/M
AudioOutput$20/M

Low-latency speech generation with steerable prompts and expressive audio tags

PaidProprietary865/1040
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GoogleAudioHolo rarePreview

Gemini 3.1 Flash TTS Preview

Low-latency speech generation with steerable prompts and expressive audio tags

gemini-3.1-flash-tts-preview
Type
Audio
Quality
Not rated yet
Context window
8,192 tokens
Max output
16,384 tokens
Input price
$1.00 / 1M tokens
Output price
$20.00 / 1M tokens
Cache read
—
Cache write
—
Released
Apr 15, 2026
Knowledge cutoff
Jan 2025
Takes in
Text
Puts out
Audio
Reasoning
Yes
Tool calling
No
Structured output
No
File attachments
No
Access
Paid
License
Proprietary
Rarity
Holo rare
Set number
865/1040

Weights aren’t public. Use is governed by Google’s terms. Specs from models.dev, last changed Oct 18, 2026. Official source: ai.google.dev.

How good is it?

Public leaderboard scores for Gemini 3.1 Flash TTS Preview, refreshed daily from Epoch AI and LMArena.

No public leaderboard lists Gemini 3.1 Flash TTS Preview yet. Epoch AI and LMArena cover most chat, image, and video models from the big labs; embeddings, speech, and small open models mostly go unrated.

Where to run it

2 providers sell Gemini 3.1 Flash TTS Preview through an API. Prices are per million tokens, cheapest first.

API providers

ProviderInputOutputContext
KenariFreegemini-3-1-flash-ttsFreeFree8K
GoogleOfficialgemini-3.1-flash-tts-preview$1.00$20.008K

From models.dev and Hugging Face, checked daily. Resellers’ listings can lag behind their price pages, so confirm with the provider before you commit.

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